Heating system



March 27, 192s. v 1,664,317

R. J. PABODIE HEATING SYSTEM Filed April 21. 192.7 4 Sheets-Sheet 1 Ewen far oberz CZfPaboclz'e March 27, 1928. 1,664,317

R. J. PABODIE HEATING SYSTEM Filed April 2l. 1927 4 Sheets-Sheet 2 fnl/en for Faerf J Po'de Bj MJU Ziffer/zeg March 27, 1928. 1,664,317

R. J. PABoDlE HEATING SYSTEM Filed April 2l, 1927 4 Sheets-Sheet 3 Inl/@afar Polveri cZ-Paorlz'e HEATING SYSTEM Filed April 2l. 1927 4 Sheets-Sheet 4 D11/en far' Robe 2 If Pabo de Patented Mar. 27, 1928.

UNITED STATES 13,664,317 PATENT OFFICE.

ROBERT J. PABODIE, OF MAYWOOD, ILLINOIS, ASSIGNOR F ONE-HALF T0 BRAYTON G. RICHARDS, OF WESTERN SPRINGS, ILLINOIS.

HEATING SYSTEM.

Application led April 21, 1927. Serial No. 185,618.A

The invention relates to heating. systems especially adapted for use in heatlng .Tesldences, and has for its object the provision of an improved system of this character, ca-

pable of economical construction and highly eiicient in use.

` Another object of the invention is the provision of a heating system of this character containing all of the advantages, and none of the disadvantages, of the usual steam and hot water heating systems.

Another object of the invention is to provide a heating system operating either by means of a forced draft of hot air or by circulation induced by convection.

Other objects will appear hereinafter.

In general the objects of the invention are attained by providing a`boiler setting of any usual or desired design and arranging a hot air flue in association therewith so as to receive heat therefrom. Arranged in this hot air flue are both hot water and steam heating pipes operatively connected with the boiler and whereby the air passing through the air iue may be subjected to the action of the hot water pipes or tubes alone or in conjunction with the steam pipes or tubes.

An electric fan is also arranged in the air flue and controlled by a thermostat whereb a forced draft of air may be caused through the air flue. A suitable air filter and humidier are provided in the air Hue and performing the usual functions therein.

The invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings forming a part of this specification and in which,

Fig. 1 is a horizontal section taken substantially on line 1-1 of Fig. 2, of a hot water heating system embodying the invention;

Fig. 2 is a vertical section taken substantially on line 2-2 of Fig. 1; p

Fig. 3 is an enlarged detail section of a portion of a heating tube employed 1n the construction;

ferent form of heating tube;

Fig. 5 is a section taken substantially on line 5 5 of Fig. 1, and

f Fig. 6 lis a. vertical section taken substantend tially on line 6-'6 of Fig. 1.

Fig. 4 is a similar view of a slightly dif-.

The preferred form of construction as illustrated in the drawings comprises a boiler setting of any usual or desired form and comprising a fire chamber 10 having a grate 11 therein adjoining a combustion chamber 12 partially separated therefrom by the usual bridge wall 13. The usual ash pit 14 is arranged in the lower portion of the setting and the usual smoke iue or pipe 15 leads from the upper and rear portion thereof. A rectangular 'boiler 16 is arranged over the combustion space thus provided and vertical water legs 17 are extended downwardly from said boiler constituting the four vertical walls of said combustion space.

lVater heads 18 and 18l are extended, respectively, from the upper and lower portions of the water leg at one side of the setting and vertical water heating tubes 19 are extended, as shown, between said water heads so as to permit of free circulation of water therethrough.

As indicated in Fi 3, the water tubes are provided with helical fins 20, as shown, and whereby an efficient and rapid dissemination of heat from the contained water is etl'ected.

In Fig. 4is illustrated a modified form of heating tube provided with straight or horizontal fins 20 which form of heating tube may also be used with equal effect.

A steam head 21 is extended from the upper forward portion of the boiler 16 at the other side thereof and in open communication with the steam space of the boiler 16 through opening 22 as best shown in Fig. 2. A water head 23 is arranged at the rear lower side of the setting to cooperate with the steam head 21 and in open communieation with the corresponding water leg of the boiler, asbest shown in Fig. 2.

Steam heating` tubes 221 are extended between the Steam head 21v and the water head 23, said steam tubes or ipes extending from the head 21 rearwardly at a slight downward inclination until over the water head 23 when they turn and extend downwardly substantially vertically into said Water head, as best shown in Figs. 2 and 6.

The tubes or pipes 24 are identical in construction with the tubes or pipes 19 and may be provided with either the fins 20 or 20 as desired.

A sheet metal casing 25 is arranged to eX- along the sideof the boiler to enclose by means of which air pipes or 32 whereby,

the water tubes 19, thence around the rear of the boiler and thence up along the other side of the boiler and over the top thereof, constituting and forming an air flue passing around the boiler and up over the top thereof and enclosing said hot water and steam heating tubes or pipes. The upper portion of said casing is provided with suitable lateral openings and surrounding flanges 25', ducts may be readily attached to the system for conducting the heated air to the various registers of the house or residence., as' will be readily uuderstood.

An entry pipe 27 is provided at the entry end of the air flue 26 and an electric fan 28, and suitable air filters 29 are inserted in said entry pipe 27, as shown. A branch pipe 30 is connected with the entry pipe 27, said branch pipe 3() constituting a cold air duct and leading to the outside of the residence for conducting fresh air into the system, as is usual in such systems. rlfhe branch pipe or duct/30 is provided with a suitable damper 31, by means of which the quantity of fresh air introduced into the system may be controlled as desired. Another branch pipe or duct 32 is connected with the pipe 27 and arranged to constitute the usual air return duct or flue arranged in the usual way to return the air from the residence being heated for r-eheat-ing as is also usual in hot air heating systems for residences. A suitable damper 33 is provided for the pipe or duct in conjunction with the damper 31 the portion of fresh air introduced into the residence may be regulated as desired.

rlhe fan 28 is connected by the wires 34; in circuit with a rheostat 35 arranged, as indicated, to supply said fan with controlled electric current for operating the same. The rheostat 35 is connected with a thermostat 36 whereby the operation of said fau may be automatically controlled by the heat as will be readily understood by those skilled in this art. rl'he. thermostat 36 is located at some convenient point in the residence to be heated and the arrangement indicated diagrammatically in Fig. 1 will thus serve to control automatically the operation of' the fan 28, and thereby control and regulate the heating effect of the system.

A water pan 37 is arranged on top of the boiler in the upper port-ion of the air flue 26 and a suitable inlet pipe 38 is extended thereto as shown. rlhe inlet pipe 38 is controlled by a suitable float and valve 39 as will be readily understood and whereby a .suitable supply of water is always maintained in the pan 37 for humidifying the air passing through said air flue.

1n operation a suit-able lire or other means of heating the boiler is maintained in the combustion space provided therefor. lin mild weather the heating means is operated recaer? to produce only hot water and the air passing through the air flue will, therefore, be subjected only to the action of the hot water tubes and thereby only mildly heated.

In colder weather the boiler is operated to generate steam and whereby the air passing through the air Hue will also be subjected to the action of the steam in the horizontally extending portions of the tubes or pipes 24.

Under such circumstances also the rear and ated to obtain the advantages of both hot water heat and vsteam heat. Also, if desired, the system may be operated without the fan 28, in which case the circulation of the air will be only that induced by convection or the heating thereof, which will ordinarily be sufficient in mild weather.

vln colder weather the forced circulation may be employed as desired.

The use of the apparatus thus disclosed will result in fuel economy and low smoke stack temperatures; a low combustion rate of fuel; will permit the use of low grade fuels when desired; will prolong the life of the boiler owing to the effec-t of the water legs thereof; will avoid the use of radiators of any description thus avoiding the cost and disadvantages thereof; will provide suitable and propervent-ilation always uuder control without the opening of doors or windows and the consequent drafts; will produce proper humidiiica-tion of the heated air withresulting well known advantages thereof; will provide means for readily controlling the heat delivered to 4the different lll() llO rooms of a residenceor the like; due to the registers. lBy eliminating solid particles' from the circulated air it will prevent the. spoilingl of wall paper andl hanging and generally ltends to a. lnore healthy living condition; by passing the circulated' air over the outer noninsulatedf surfaces of the boiler heat is picked up thereby which i would otherwise be lost by radiation; and a generally efficient and economical system is provided for heating residences and the like.

lin brief and in general by means of the arrangementI set forth, there is combined in one unit a steam or hot water heating boiler and selective means for effecting forced or convective circulation of the heated air.

l. A heating system comprising a boiler;

a hot air Hue: heating elements in said Hue and connected to be supplied with steamv from said boiler; and heating elements in said Hue connected to lie-supplied with hot water from said boiler.

2. A heating system comprising a. boiler; a hot air Hue; steam heating tubes in said Hue and connected to be supplied with steam from said boiler; and hot water heating tubes in said Hue connected to be supplied with hot water from said boiler.

3. A heating system comprising a boiler;

a hot air Hue traversing said boiler and arranged to receive heatl therefrom; steam heating tubes in said Hue and connected to be supplied with steam from said boiler; and hotwater heating tubes in said Hue connected to be supplied with hot water from said boiler.

et. A heating system comprising a steam boiler; an air Hue passing around the sides and over the top of said boiler; hot water tubes arranged in said air Hue in open communication at both ends with the water in said boiler; steam tubes in said Huein open communication with the steam and water space of said boiler; an electrically driven fan arranged to cause a draft of air through said Hue; and a thermostat arranged to control the operation of said fan.

5. A heating system comprising a steam boiler; an air Hue passing around the sides and over the top of said boiler; hot water tubes arranged in said air Hue in open communication at both ends with the water in .said boiler: steam tubes in said Hue in open communication with the steam and water space of said boiler; an electrically driven fan arranged to cause a draft of air through said Hue; a thermostat'arranged to control the operation of said fan; and an automatic Hoat controlled humidifier in said Hue arranged to introduce moisture into air passing through said Hue.

6. A heating system comprising a steam boiler; an air Hue passing around the sides and over the top of said boiler; hot water tubes arranged in said air Hue in open communication at both ends with the water in saidA boiler; steam tubes in said Hue in open communication with the steam and water space of said boiler; an electrically vdlrivenfan arranged to cause a draft of air through said Hue; a thermostat arranged to control the operation of said fan; an air filter in said Hue arranged to remove solid particles from air passing therethrough; and an automatic Hoat controlled humidifier in said Hue arranged to introduce moisture into air passingl through said Hue. A

'i'. A heating system comprising a lboiler setting consisting of a combustion space and a boiler thereover, said boiler being provided with vertical water legs constituting the sides of said combustion space; an air Hue passing along one side, across the back, up the other side and over the top ot said boiler setting; water-heads extending from the corresponding water leg into the upper and lower port-ion of the first mentioned portion of said air Hue; vertical water tubes extending between said heads; a steam head extending from said boiler into the upper forward portion of the upwardly extending portion of said air Hue; a water head extending from the corresponding water leg into the lower rear portion of said upwardly extending portion of said air Hue; and steam pipes extending from said steam head rearwardly at a slight downward inclination to the rear portion of the setting and thence downwardly substantially vertically into said last mentioned water head.

8. A heating system comprising a boiler setting consist-ing of a combustion space and a boiler thereover, said boiler being provided with vertical water legs constituting the sides of said combustion space; an air Hue passing along one side, across the back, up the other side and over the top of said boiler setting; water heads extending from the corresponding water leg into the upper and lower portion of the Hrst mentioned portion of said air Hue; vertical water tubes extending between said heads; a steam head extending from said boiler into t-he upper forward portion of the upwardly extending portion of said air Hue; a. water head extended from the corresponding water leg into the lower rear portion of said upwardly extending portion of said air Hue; steam pipes extending from said steam head rearwardly at a slight downward inclination to the rear portion of the setting and -thence downwardly substantially vertically into said last mentioned water head; and means for causing a forced draft of air through said Hue.

9. A heating system comprising a boiler setting consisting of a combustion space and a boiler thereover, said boilerbeing provided with vertical water legs constituting lthe sides of said combustion space; an air Hue passing along one side, across the back. up the other side and over the top of said boiler setting; a plurality of air ducts leading from the portion of said Hue above the top of said boiler setting; water heads extending substantially horizontally from the corresponding water leg into the upper and lower portion of the first mentioned por tion of said air iue; vertical Water tubes extending between said water heads; a steam head extending from said boiler into the upper forward portion of the upwardly extending portion of said air flue; a water head extending substantially horizontally from the corresponding water leg into the lower rear portion of said upwardly extending portion of said air flue; and steam pipes extending from said steam head rearwardly at a slight inclination to the rear portion of the setting and thence downwardly substantially vertically into said last mentioned water head.

10. A heating system comprising a boiler setting consist-ing of a combustion space and a boiler thereover, said boiler being provided with Vertical water legs constituting the sides of said combustion space; an air flue .passing along one side, across the back, up

the other side and over theI top of said boiler setting; a plurality of air ducts leadtending substantially horizontally from the corresponding water leg into the upper and lower portion of the first mentioned portion of said air flue; vertical water tubes extending between said water heads; a steam head extending from said boiler into the upper forward port-ion of the upwardly extending portion of said air flue; a water head extending substantially horizontally from the corresponding water leg into the lower rear portion of said upwardly extending portion of said air flue; steam pipes extending from said steam head rearwardly at a slight inclination to the rear portion of the setting and lthence downwardly substantially vertically into said last mentioned water head; and means for causing a forced draft of air through said flue.

lln witness that ll claim the foregoing as vmy invention lt aiiix my signature this 18 day of April, 1927.

ROBERT dl. PABUDIE. 

